package com.wyz.config;

import org.springframework.util.StringUtils;
import org.springframework.web.servlet.LocaleResolver;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Locale;
//语言切换，需要在spring中注册bean
public class LanguageResolver implements LocaleResolver {
    @Override
    public Locale resolveLocale(HttpServletRequest request) {
        //获取请求中的语言参数
        String language = request.getParameter("lang");
        Locale locale = Locale.getDefault();//如果没有就使用默认的
        //如果请求的链接携带了国际化的参数
        if (!StringUtils.isEmpty(language)){
            //zh_CN
            //切割一个字符串 以_切割成两个数组
            String[] split = language.split("_");
            //国家 地区
            locale = new Locale(split[0], split[1]);
        }
        return locale;
    }

    @Override
    public void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) {

    }
}
